10/22 Gunsmith Notes: Ruger 10/22 barrels are cut with a standard SAAMI .22 reamer which cuts .062" too deep. Production speed machine reaming often leaves burrs in throat and chambers not concentric to bore. Aftermarket barrels have tighter, shorter chambers (sometimes too tight) than the SAAMI print but seldom short or concentric enough for maximum accuracy.

CPC designs its own reamers for the 10/22 called CPC Freebore chamber for ideal function and accuracy. Setback is .187" to .250" on breech end. The newly cut area on barrel shank is oversize for a 'line to line' tight fit into the receiver stabilizing the two parts. A steel spacer is cut and hand fit into the barrel lockdown cut to insure proper retightening. CPC fits a reamer pilot to the exact bore size and re-reams each barrel by hand. New chamber throat and crowns are cut concentric to bore within .0002".

CPC semi-auto match freebore chamber reams until a Winchester Power Point, Eley, or CCI bullet lightly sticks. These are used as gauges since all .22 L.R.s will work except some longer .22 Hyper-velocity's.

TUNEUP OPTIONS. Add $45 to any Tuneup for Threading barrel and Ruger
receiver eliminating the V-block and screw retainer. Does shorten barrel by
.75" but makes for a more consistent shooting rifle. (Mostly done to
bull barrels.)
Add $10 for parts if there was a previous trigger job or attempt.
Per request, a cleaning hole can be drilled in back face of receiver and/or a
nylon bolt stop pin installed at no charge.
Priority mail returned insured for $300. Add $1.30 extra for $100 worth
of additional insurance.

MOA receivers can be used. Some stocks can be converted to the rear lug,
add $85 plus extra $12 s&h for stock

10/22 Bolt

Ruger T barrel sporter tapered crown.This one was threaded into the Ruger receiver eliminating the V-block part making a stable rifle.Barrel is finished at 19 inches.

Ruger T or RRR barrels only.Tapered from end of stock forward by 8.5" to a .62" dia recessed 11 degree target crown.Removes .5 lb of front weight and produces the best accuracy from the hammer forged barrel.